he said he wants better relations for the world and relief for the economy. the main reason for iran's isolation is nuclear defiancdef. he says the centrifuges will keep spinning. there's a willingness to be flexible, but not clear where he will give. >> of course, the nuclear programs are totally transparent in nature, but we are ready to show more transparency and show the world that iran's nuclear work complies fully with international framework. >> reporter: he knows the nuclear program, he was their nuclear negotiator 2003 to 2005. >> he is a regime insider, he is not going to make easy concessions. he was viewed as a tough negotiator when he headed their negotiating team. only after he left that the europeans realized how good they had it with him as negotiator, at least he was ready to make some compromises. >> reporter: during his term as negotiator, iran voluntarily suspended the enrichment program. he says he won't do that again. today nobody would expect an iranian leader to suspend that country's enrichment program with 14,000 centrifuges. experts